Liquid cooler



March 18, 1930.

J. G. KING LIQUID COOLER Filed Feb. 2l, 1927 Il g v gli@ ,df

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PATENT ,oFFIcl-z A or Damomlomo, AssIoNon, BY :unsern nssrenmrs, To raremmnoconronanon, A conroaa'rron or nmwm LIQUID coonnn Application :Med February 21,' 1927. Serial No. 169,745.

This` invention relates to mechanically refrigerated liquid coolers, and more especlally to devices for cooling drinking water.

One object of the present' invention is to 5 provide a self contained unitary structure' enclosinglaI refrigerant cooling unit or evap- 4 ch isin good thermal contact with orator w a conduit or p pe coil through which water or other liquidmay be circulated.

A further object of the invention is to provide ali uid cooling unit which -is supported by a pe esta] fon the iioor at a convenient height, the edestal being constructed to house the re rigerantducts connected with the eva orator, a pipe connected with the liquid co' and other accessory pipes which may be usedwith the evaporator.

Further objects and advantages of the resent invention will be apparent from the ibllowing description, reference being had to the accompanying drawings wherein a preferred embodiment of one orm of the present invention is clearly shown.

' In the drawings: v

Fig. 1 is a vertical sectional view of one form of the invention. Fig. 1 also includes a dia am of refrigerbting mechanism associate vwith the evaporator included in the cooling unit; and

2 and 3 are sectional views taken respectively on the lines 2-2 and 3- 3 of Fig. 1.

" Referring to the drawings, 20 designates a case having thermally insulated walls 21 surrounded by a metal jacket 22. An end. a5 wall 23 is removable to rovide access to the interior of the case, an is secured in position by screws 24 Apassing through the metal jacket member 25,'-whic' is attached` tothe wall 23. The vcase 20 is supported by apedesy 4o tal 26, which isconstructed so as tov lace thecase 20 at a convenient heightv a ove the fioor. The pedestal 26 is hollow in order to house certain-pipes which are connected with the cooling unit within the case'. 1

45 The case .20 houses a cylindrical boiler or evaporator' 30 containing refrigerant which is delivered te it through a pipe 31 and from which expanded refrigerant is withdrawn through a pipe 32. A iioat controlled valve 65, for instance of the type disclosed in the atent to R. G. Osborn, 1,556,708, patented ctober 13, 1925, controls the flow of liquidv refrigerant into the boiler 30. A The boiler 30 is surroundedV by 'a pipe coil 33 formed of pipe of oblong cross section which may be wound on edge around the boiler 30, and

which is thermally connected therewith in any suitable manner as by soldering. The narrower edges f the pipe coils are thus directly bonded to the boiler 30, and the broader sides of the coils are in contact with each other. In this way a large cooling surface is presented to the hquid owin through the coil 33 and the metal path lea lfrom v the interior of the boiler to this cooling surface is suiiiciently great to eiectively transfer the heat. v'

One end of the coil 33 is connected with av pipe 34 leadin from a source of liquid supply. In case t e apparatus is used for cooling drinking water, the pipe 34 would be connected with the city watermain.- The other end of the coil 33 extends through one of the end walls of the case 20 and is connected exa shelf 36 in the form of a shallow pan for teriorly ofthe case with a faucet 35. Directly unler thel faucet the case is provided with ythe case 20 so that there will be a space between the coil 33 and the sides of the case. This space is completelyV filled with removable insulating material 40, such as kapok.v

,The boiler 30 isprovided with .a removable endy wall '41, to which the pipes 31 @and 32 are connected by fittings 42 and 43 respective- 9o ly. After removing the end wall 23 and after detachingthe pipes 31 and 32 from the fittings, these pipes `may be bent away from the end wall 41 so that this part may be removed to provide access to the interior of the boiler 30 without removing the same from the case 20.

As shown in the drawings, pipes 31, 32 and 34 extend through an opening 44 in the bottom wall of the case 20 and downwardly with the pipe 38 through the hollow pedestal 26.

The pipe 32 .is connected with a'refrigerant compressor pump 50, which is driven by an with a thermostat bulb 63 containing'volatile liquid. As shown, the pipe 62 also ex tends upwardly 'through the pedestal 26.

It is apparent from the foregoingl that the present invention provides a compact unitary structure which may be easily installed and connected with refrigerating apparatus and a source of liquid supply. The cooler may also readily be disassembled for repairs and adjustment. Y v f While the form'of embodiment of the present invention as herein disclosed, constitutes a preferred form, it is to be understood that v other forms might be adopted, all coming within the scope of the claims which follow.

vWhat is claimed isas followsi 1. A liquid cooler comprising, in combination, a cylindrical refrigerant chamber having walls of metal ofl good thermal conductivity, and a coil of fattened pipe of metal of good thermalconductivity wound on edge and having its turns metallicall joined to the chamber and the fiat sides of t e turns of the coils abutting one another. '2. A liquid cooler comprising, in combination, a refrigerant chamber, a duct for receiving a liquid and in good thermal contact with the chamber, a liquid inlet pipe connected with the duct, refrigerant inlet and outlet pipes for connecting the chamber with refrigerating apparatus, a case having insulating walls or enclosing the duct and chamber, a

hollow support for supportingthe'case and for enclosing said pi es, and li uid outlet extending exteriorly ofp the case an connected with the liquid duct. e

3. A liquid cooler com rising, in combination, a case havin insu' ating walls and an opening through t e bottom thereof, a hollow It* base supporting the case,.the interiorof the cuit of the motor 51 and which includes a` flexible bellows 61 connected by a pipe 62 base communicating with the chamber` through said opening, a refrigerant chamber J within the case, a cooling coil surrounding the chamber and also located within the case,

' a liquid inletpipe connected with 'the duct, .70 I

`refrigerant inlet and outlet pipes for connecting the chamber with refrigerating-apparatus, said pipes extending through'the holklow base and lthrough said opening in the bot tom of the case, and a faucet located on the outside `ofthe case and connected through the case with the cooling coil.l

4. A liquid cooler comprising a cylindrical refrigerant chamber, refrigerant control means within said chamber, a coil of pipe sur" l rounding said chamber adapted to conduct the liquid to be cooledfthe convolutions of said pipe' being flattened and having their fiat portions in contact with each other,`said pipe being metallically attached to the exte- 35 rior' of said chamber.`

f5. In ailiquid cooler, a unitary structure composed of a tank adapted to act as a heat exchange device, a coil of pipe surrounding the same exteriorly and adapted tol'conducty 90' the liquid to be cooled, said pipe having flattenedconvolutions compacted together intointimate contact at their iiat surfaces and be-` e ingkintimately metallically attached to said tan i 6. A li uid cooling-device comprising a wall' formmgv a refrigerant tank, automatic volatile refrigerant circulating means con- 'nected with an inletandoutlet in said tank,

t a/fioat. controlled valve for controlling the flow of unvolatilized refrigerant into said tank, walls forming a passage for liquid to be cooled, said last-named walls being connected to the wall of said tank, saidpassage winding spirally` around the refrigerantm v said tank.

7. A li uid cooling device comprising' a A wall forming. a horizontalrefrigerant tank, automatic volatile refrigerant circulating means connected Vith an inlet and outlet in 110 said tank, a ioatv controlled valve for controlling'the iiow of unvolatilized refrigerant into said tank, walls forming av passage for liquld to be cooled, said last named walls being connected ,to the walls of said` tank, said passagewinding spirally labout a horizontal axis around the refrigerant insaid tank.

8. A liquid cooling device comprising a wall/forming a refrigerant tank, automatic volatile refrigerant circulating means con-` ynected with an inlet and outlet in said tank,

a ioat controlledvalve fori controlling the fiow of unvolatilized refrigerant into said tank, walls forming a passage for liquid to be cooled, said last named'wall's being connected 125 to the wall outside of said tank.

9. A- li uid cooling device comprisingy a wall .forming a horizontal refrigerant tank, automatic volatile refri erant circulating means connected with an mlet and outlet in 13 said tanl'r, a oat controlled valve for controlling the How of unvolatilized refrigerant. in sald tank, walls forming a passa e for uid to be cooled, said last named wa be-I g connected to the wall outsideof said tank,

'sanassage Winding spirally about a horizon axis around the refrlgerant in said tank. 1 In ttimony whereof I hereto ax my signature. A JESSE KING.

cmmcmj. or connncrlon. mm No. 1.150.893. cloned noch 1s. 1930. m

msm c. inne.

It is hereby certified that error nppears in the `xbove numbered pntent requiring correction as follows; Page 3, after liuc 8, insert the following as claim l0:

l0. A liquid cooling nevice comprising n cylindrical wall forming a refrigerant reservoir, automatic volatile refrigerant circ'ulating means connected with aninlet and outlet in said reservoir, a float controlled valve' for controlling tbe flo"w ofiunvolatilized refrigerant into said reservoir, said nutomatc volatile refrigerant circulating menns including an automatic refrigerant temperature control., a passageior liquid to be cooled` saidnlmed passage being iu spiral form coaxial with und aditicent said cylindripll wall.

ln the drawing, Figure l, snould appear as shown below instead of as shown in the drawing; .v

and tlut the uid Lettere l'ltent should be read with this correction therein thu the sinne my cunforn to the record of the :ne in the Pnentftice.

Signed nd sealed this Nth diy of May. A. D. |930. y

IM* J (Seel) A A Acting Gomiseimr ol Pltentl. 

